In March (usually the busiest month) of 2006, 2007, and 2008, there were more than 3.8 million passengers coming and going at Sky Harbor.

By March 2009, there were fewer than 3.5 million passengers, then more than 3.5 million in March 2010, more than 3.7 million in March 2011, more than 3.8 million in March 2012, and more than 3.9 million in March of last year.

Click here to see detailed figures on the airport's traffic from March.